Computer Hardware User Manual

1-32
Chapter 1: Product introduction
Chapter 1
Q-Code table
(continued on the next page)
Code Description
00 Not used
01 Power on. Reset type detection (soft/hard).
02 AP initialization before microcode loading
03 System Agent initialization before microcode loading
04 PCH initialization before microcode loading
06 Microcode loading
07 AP initialization after microcode loading
08 System Agent initialization after microcode loading
09 PCH initialization after microcode loading
0B Cache initialization
0C – 0D Reserved for future AMI SEC error codes
0E Microcode not found
0F Microcode not loaded
10 PEI Core is started
11 – 14 Pre-memory CPU initialization is started
15 – 18 Pre-memory System Agent initialization is started
19 – 1C Pre-memory PCH initialization is started
2B – 2F Memory initialization
30 Reserved for ASL (see ASL Status Codes section below)
31 Memory Installed
32 – 36 CPU post-memory initialization
37 – 3A Post-Memory System Agent initialization is started
3B – 3E Post-Memory PCH initialization is started
4F DXE IPL is started